
PIC18F6585/8585/6680/8680
DS30491C-page 132
2004 Microchip Technology Inc.
TABLE 10-5:
PORTC FUNCTIONS
TABLE 10-6:
SUMMARY OF REGISTERS ASSOCIATED WITH PORTC
Name
Bit#
Buffer Type
Function
RC0/T1OSO/T13CKI
bit 0
ST
Input/output port pin, Timer1 oscillator output or Timer1/Timer3
clock input.
RC1/T1OSI/CCP2(1)
bit 1
ST
Input/output port pin, Timer1 oscillator input or Capture 2 input/
Compare 2 output/PWM output (when CCP2MX configuration bit is
disabled).
RC2/CCP1/P1A
bit 2
ST
Input/output port pin or Capture 1 input/Compare 1 output/
PWM1 output.
RC3/SCK/SCL
bit 3
ST
RC3 can also be the synchronous serial clock for both SPI and I2C
modes.
RC4/SDI/SDA
bit 4
ST
RC4 can also be the SPI data in (SPI mode) or data I/O (I2C mode).
RC5/SDO
bit 5
ST
Input/output port pin or synchronous serial port data output.
RC6/TX/CK
bit 6
ST
Input/output port pin, addressable USART asynchronous transmit or
addressable USART synchronous clock.
RC7/RX/DT
bit 7
ST
Input/output port pin, addressable USART asynchronous receive or
addressable USART synchronous data.
Legend: ST = Schmitt Trigger input
Note 1:
RB3 is the alternate assignment for CCP2 when CCP2MX is set.
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR, BOR
Value on
all other
Resets
PORTC
RC7
RC6
RC5
RC4
RC3
RC2
RC1
RC0
xxxx xxxx
uuuu uuuu
LATC
LATC Data Output Register
xxxx xxxx
uuuu uuuu
TRISC
PORTC Data Direction Register
1111 1111
Legend: x = unknown, u = unchanged